Jetty



Oct. 18, 1927- PRINGLE JETTY Filed May 24. 19

2 Sheets-Sheet 1 WAN... n MW JETTY Filed May 24. 1924 2 Sheets-Sheet 2 Patented Oct. 18, 1927.

" UNIOOTED'STATES PATENT OF ICE. 7

WAYNE PRINGLE, OF LINCOLN, NEBRASKA, ASSIGNOB, TO WOODS BROTHERS COB.- PORATION, OF LINCOLN, NEBRASKAL A CORPORATION OF NEBRASKA.

marry.

Application filed in, 24,

provide a novel jetty and jetty sectionswhich may be located in a flowing stream or current and capable of efficiently collecting silt for forming bars and the like; to 10 provide a jetty with an inclined surface or face upon which the silt may be deposited or held in place; to provide a jetty with longitudinal elements, spaced andextending so as to aidin collecting silt, and preferably, to support a silt collector, such as Wire mesh. material or the like; toprovide a jetty with open mesh material, such-as wire fabric, for the depositing thereon of the silt; to provide a support for the same, preferably comprising a longitudinal bar, to which may be fastened or secured one or more transverse bars, preferably intermediate their ends, and means, such as strut or supporting bars, preferably fastened at one end thereof to the first mentioned bars, for holding the latter in an inclined or oblique position whereby the fabric may be supportedthereon in position for the silt collection; to provide on such supportsilongitudmal support- 0 ing elements, preferably, in the form of cables or wires extending the length of the jetty or barrier with the ends of the cables preferably connected at their ends to an end cross bar or transverse bar of the etty at each end thereof, to the end of aiding in supporting the wire mesh; to connect the supporting sections in a line or. row by connect ing the adjacent, ends of the longitudinal bars together, and holding the sections in 40 place by suitable anchoring means, such as tie elements from piles in the'bedof the stream or bank and dead men in the'bank; to provide for a: permeable barrier, if desired, at the rear of the jetty to a d in retarding the rate of flow of the stream aiid i11 the collecting of the silt upon the barrier and jetty, the barrier preferably being a series of groups of trees or branches extending rearwardly from the jetty and secured thereto in suitable manner; and to provide such other objects, advantages and capabili= ties as will later appear and are inherently possessed by the invention.

f vReferring to the drawings showing an. il-

1924. Serial No. 715,539.

lustrative embodiment of the invention, Fig. 1 IS a View in perspective of a stream or river in which the jetties are located; Fig. 2

is a perspective view of a unit or section or segment constructedin accordance with the invention, F g. 3 is a front 'view, of the same; and, Fig. 4; is an end view of the same.

the invention is shown in use in F l where sections are connected together longitud nally and the line of sections are held in place bysuitable' connectingor tie elements 1 and 2 respectively connected to dead men 3 buried in the bank of the stream or piles et sunk in the bed of the stream. The bank end of each barrier or jetty may also be connected by a suitable element 5 or 6 securedto dead men 7 and 8 also buried in the bank.

At the rear of each jetty may be located a series of treets or branches 9 suitably connected to thejetty or jetty sections by tie elements preferably connected to the horizontal section bars of the jetty. J v a Referring more particularly to Figs. 2, 3 and .t, each sectionis shown as comprising a longitudinal bar 10, preferably of angle iron to which maybe secured, at a distance a from the end of the bar 10, a pair of substantially parallel spaced transverse bars 11 and 12, also preferably ofangle. iron, and supporting or strut bars 13 and 14 which are preferably secured at an end thereof to the longitudinal and transverse bars at the juncture of the longitudinal'and transverse bars, the free ends of the strut bars 13 and 14 extending laterally i from the longitudinal and transversebars, and adapted to rest on the bed of the stream, at the; rear of the jetty.

. It will thus. beseen that the longitudinal and transverse bars form asort of double cross which is held in inclined position by the strut bars 13 and 14;. Thejetty is composed of these angle, barconstructionsas sections or segments of the jetty, any number of sections being arranged in a row-or line to the desired length of the jetty to'be placed in the stream as shown in Fig.1,

of the drawings. In order to connect the sections or units in alinement, the longitudinal bars are provided at the ends thereof with suitable apertures or openings :15 and 16 through which may be passed the connecting element 17, preferably wire or similar connecting means. The weight of the sections is suflicient to hold them in place on the bed of the stream and the rolling of the jetty is prevented by the tie elements 1 and 2 connected to the dead men 3 and the piles 4. The connecting elements 1 and 2 are preferably connected, at the jetty ends, to the longitudinal bars 10 as clearly shown 111 Fig. 1 of the drawings.

For the purpose of aiding in collecting the silt upon the face of the jetty, the face being thatof the longitudinal and transverse bars, strips or sheets of wire mesh or like fabr c 18 may be placed to overlie such face. 'TlllS wire fabric is preferably in long sheets that .may be laid upon the face of the sections for the total length of a jetty, the strips being cut at the ends of the jetty. A number of these strips may be placed upon the jetty side by side so as to completely cover the face thereof. In the specific form shown three strips are shown but it is to be understood any number of strips may be used depending upon the total width or height of the face of the jetty.

While thesestrips may be sufficiently supported by the longitudinal and cross bars of the jetty section, yet, when it is desired to support them more efficiently, the etty may be provided with a plurality of spaced longitudinal elements 19, preferably of wire or cable extending the full length of the etty. These elements are connected at their ends to the end cross bars 20 and 21 of the end sections of the jetties as shown in Fig. 1 of the drawings. The elements are then extended through suitable perforations or holes 22 and .23 provided in the cross bars 11 and 12 of the sections as clearly shown in Figs. 2,3, and 4 of the drawings. The sheets or strips of wire mesh 18 may rest'upon these elements and are preferably secured to these elements by suitable securing means 24, preferably wire or the like.

In order to aid in the collection of the silt upon the jetty and in rear of the same so as tobuild up a bank or prevent the erosion of the bank at the side of the stream a barrier of a permeable nature may be located at the rear of each jetty, this barrier being preferably formed from a series or bunches of trees or branches 9 as clearly shown in Fig. 1 of the drawings. These trees are placed substantially horizontally and extending rearwar'dly from the jetty with the stems or trunks of the trees connected to the jetty sections in suitable manner, as by cables or wires fastened to the longitudinal bars 10 of the sections of each jetty. These trees are bunchedtogether so that they will extend a given distance above the normal surface or level of the stream. Theyact to retard the rate of flow of the stream so the silt and suspended matter in the water will have a chance to be deposited upon the jetty as well as upon the branches of the trees, and to the rear of the same.

The sections of the jetties are so positioned upon the bed of the stream to preferably present the sheet of material 18 on the upstream side of the jetty so that it may efli- .ciently gather or collect the silt and other shown and described, but comprehends other constructions, details and arrangements of parts without departing from the spirit thereof. Having thus described by invention, I claim:

1. A jetty comprising a longitudinal bar adapted to extend in a substantially horizontal plane when positioned in the flowing stream, upstanding bars spaced longitudinally of the first mentioned bar, struts connected to the juncture of the horizontal and upstanding bars for maintaining the upstanding bars in erect position, said upstand- 111g bars and struts being adapted to have their lower ends lie upon the bed of the stream and a net work of wires extending over the front face of the jetty and being coextensive with the height of the upstanding bars and the length of the longitudinal bar.

2. A etty comprising a longitudinal bar adapted to extend across the stream, spaced upstanding bars fastened intermediate their ends to the longitudinal bar, struts inclining rearwardly and connected at their upper ends to juncture of the former bars, the

lower ends of the struts and upstanding bars A i being adapted to rest upon the bed of the stream, and a net work-0f wire covering the face of and coextensive with the upstanding and longitudinal bars.

3. A jetty comprising a longitudinal metal angle iron, adapted to extend across the stream, spaced upstanding metal angle irons fastened intermediate their ends to the longitudinal. bar, said upstanding members being maintained in erect position by means of struts secured to the juncture of the upstanding and longitudinal members and the lower ends of said struts and upstanding members being adapted to rest upon the bed of the stream, and a wire mesh screen fastened to and covering the entire area embraced by the extremities of the upright and longitudinal members and disposed upon the side opposite from which the struts project. 4. A jetty comprising a longitudinal metal angle iron adapted to extend across the stream, spaced metal angle irons fastened intermediate their ends to the longitudinal iron and disposed transversely thereto, struts attached to the junction of the longitudinal and transverse irons and extending downwardly and outwardly to form supports for holding the transverse members in upwardly inclined position, a plurality of Wires connectingthe transverse members and extending in spaced relation parallel to the longitudinal member, and wire screening covering the entire area of the Wires.

5. In a jetty the combination of a longitudinal angle iron having a plurality of uprights connected thereto intermediate their ends and spaced longitudinally thereof, a strut fastened to the junctureof the longitudinal and upright members for holding the latter in inclined postion, said uprights having a plurality of vertically spaced holes, and wires passing through the holes and extending in parallel spaced relation longitudinally of the longitudinal angle iron, and wire screening fastened to the wires and to the" angle irons.

6. In a'jetty the combination of a jetty composed of angle irons arranged to rest upon the bed of the stream with one of irons of the jetty standing erect, silt detaining members carried by the jetty, cables connected to the jetty for anchoring the jetty in position in the stream, and a plurality of cables connected to the jetty and extending rearwardly thereof and trees anchored by means of said rearwardly extending cables to the jetty, said trees extending rearwardly of the jetty.

7. In combination with a jetty made of angle iron resting by its own weight upon the bed of the stream and anchored in position by means of cables, a plurality of trees positioned in the rear of the jetty and anchored to the jetty by means of flexible scables connected to the trunks of the trees.

8. In combination with an upright jetty positioned in a stream and having silt retaining members, a plurality of trees positioned in the rear of the jetty and anchored thereto by means of cables passing about the trunks of the trees.

9. In combination with an upright jetty positioned in a stream and having silt retaining members, a pluralityof trees having branches, said trees extending rearwardly of the jetty with their branches further removed from the jetty than their trunk portions, and means for anchoring the trees to V the jetty. v

In witness Whereof,'I hereunto subscribe my name to this specification.

WAYNE PRINGLE. 

